This Flexcon Flex 2 Pro Thermal Expansion Tank 4.8 Gallon is used on gas, oil, electric, or direct-fired residential water heater and hot water storage tank applications to absorb the increased volume of water created by thermal expansion. It also maintains balanced pressure throughout the water supply system by keeping system pressure below the T&P relief valve setting. An expansion membrane prevents air-to-water contact in the tank ensuring a long system life.

Specifications:

• Air pre-charge at 40 PSI (Adjustable)
• Prevents over-pressure caused by thermal expansion
• IAPMO listed and ANSI/NSF 61 certified

Features:

• Inlet Connection: 3/4" Male NPT
  
• Max Operating Temperature: 200° F
  
• Max Working Pressure: 150 PSI

Materials:

• Shell: Drawn steel w/ epoxy finish
• Diaphragm: Butyl rubber 
• System Connection: Stainless Steel